﻿using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace WindowsFormsApplication3
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            int[] arr = new int[10];
            String str = "";
            for (int i = 0; i < 10; i++)
            {
                arr[i] = i;
                str = str + Convert.ToString(arr[i]+ " ");
            }

            textBox1.Text = str;
        }
    }
}
